You'll need to update to 3.1 - 4.1 using a disc. Do NOT update via internet, this will take you to 4.2 which should be avoided.

Rent/Buy/Lend a game disc which should contain a 3.X or 4.1 update, most games now have these updates. Insert the disc into your wii and it should prompt you to update. After the update, you can start softmodding with this:http://www.wiihacks.com/recommended-...d-any-wii.html